Inherits TreeView : TreeView « System.Windows.Forms « VB.Net by API

1. VB.Net by API
2. System.Windows.Forms
3. TreeView

Inherits TreeView

  
Imports System
Imports System.Drawing
Imports System.Windows.Forms
Imports System.ComponentModel
Imports System.Drawing.Drawing2D
Imports System.IO

Public Class MainClass
    
    Shared Sub Main()
        Dim form1 As Form = New Form1

        Application.Run(form1)


    End Sub
End Class




Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Private components As System.ComponentModel.IContainer
    Friend WithEvents tree As JobTree
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.components = New System.ComponentModel.Container()
        Me.tree = New JobTree()
        Me.SuspendLayout()
        '
        'tree
        '
        Me.tree.Location = New System.Drawing.Point(8, 8)
        Me.tree.Name = "tree"
        Me.tree.Scrollable = False
        Me.tree.Size = New System.Drawing.Size(368, 288)
        Me.tree.TabIndex = 0
        '
        'CustomJobUserTree
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 14)
        Me.ClientSize = New System.Drawing.Size(384, 310)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.tree})
        Me.Font = New System.Drawing.Font("Tahoma", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Name = "CustomJobUserTree"
        Me.Text = "JobUser Tree"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub CustomJobUserTree_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

   
        tree.AddJob("Job 1", JobTree.StatusType.InProgress)
        tree.AddJob("Job 2", JobTree.StatusType.Unassigned)
        tree.AddJob("Job 3", JobTree.StatusType.Unassigned)
        tree.AddJob("Job 4", JobTree.StatusType.Closed)
        tree.AddJob("Job 5", JobTree.StatusType.Closed)


    End Sub

 
End Class

Public Class JobTree
    Inherits TreeView

    Public Enum StatusType
        Unassigned = 101
        InProgress = 102
        Closed = 103
    End Enum

    Private nodeUnassigned As New TreeNode("Unassigned", 0, 0)
    Private nodeInProgress As New TreeNode("In Progress", 1, 1)
    Private nodeClosed As New TreeNode("Closed", 2, 2)

    Public Sub New()
        MyBase.New()
        MyBase.Nodes.Clear()
        If Me.DesignMode = False Then
            MyBase.Nodes.Add(nodeUnassigned)
            MyBase.Nodes.Add(nodeInProgress)
            MyBase.Nodes.Add(nodeClosed)
        End If
    End Sub

    Public Sub AddJob(ByVal name As String, ByVal status As StatusType)
        Dim nodeNew As New TreeNode(name, 3, 4)
        nodeNew.Tag = status

        Select Case status
            Case StatusType.Unassigned
                nodeUnassigned.Nodes.Add(nodeNew)
            Case StatusType.InProgress
                nodeInProgress.Nodes.Add(nodeNew)
            Case StatusType.Closed
                nodeClosed.Nodes.Add(nodeNew)
        End Select
    End Sub

End Class

   
    
  

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